Revision 95ef1e52922cf75b1ea2eae54ef886f2cc47eecb authored by Avi Kivity on 15 November 2011, 12:59:07 UTC, committed by Avi Kivity on 20 November 2011, 08:53:48 UTC
Prevent tracing of preempt_disable() in get_cpu_var() in kvm_clock_read(). When CONFIG_DEBUG_PREEMPT is enabled, preempt_disable/enable() are traced and this causes the function_graph tracer to go into an infinite recursion. By open coding the preempt_disable() around the get_cpu_var(), we can use the notrace version which prevents preempt_disable/enable() from being traced and prevents the recursion. Based on a similar patch for Xen from Jeremy Fitzhardinge. Tested-by: Gleb Natapov <gleb@redhat.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Avi Kivity <avi@redhat.com>
1 parent bb75c62
| File | Mode | Size |
|---|---|---|
| Kbuild | -rw-r--r-- | 117 bytes |
| inftl-user.h | -rw-r--r-- | 1.5 KB |
| mtd-abi.h | -rw-r--r-- | 9.1 KB |
| mtd-user.h | -rw-r--r-- | 1.2 KB |
| nftl-user.h | -rw-r--r-- | 2.0 KB |
| ubi-user.h | -rw-r--r-- | 15.1 KB |
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